No problem, we've got 72161971 and 75079131 to multiply
72161971 × 75079131 = 75079131 × (72161971)
+ 75079131 × 1 what gives us 75079131
+ 75079131 × 70 what gives us 5255539170
+ 75079131 × 900 that results in 67571217900
+ 75079131 × 1000 what gives us 75079131000
+ 75079131 × 60000 yielding 4504747860000
+ 75079131 × 100000 producing 7507913100000
+ 75079131 × 2000000 that results in 150158262000000
+ 75079131 × 70000000 yielding 5255539170000000

= 5417858073927201
